Population Ecology

Logistic growth has 3 phases. In Phase 1, the population grows rapidly. In Phase 2, population grows slowly. In Phase 3, growth stops. What causes growth to stop in the 3rd phase of logistic growth?

• Emigration
• Immigration
• Exponential Growth
• Carrying Capacity

Tags

NGSS.MS-LS2-4

True or False: Limiting factors can be population dependent and population independent.

• True/Cierto
• False/Falso

Which limiting factor is independent of the number of individuals in a population?

• competition
• parasitism/disease
• stress
• natural disasters

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What does the graph represent?

• Emigration
• Exponential growth
• Immigration
• Logistic Growth

Tags

NGSS.HS-LS2-2

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

A population is...

• A group of one species in one area
• Multiple species that live in one area
• All of the living and nonliving things in an area
• None of these

Which of the following are density dependent factors?

• competition for resources

• predation

• disease

• natural disasters

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

To measure population density, you must divide the number of individuals living in a defined space by the

• area of the space
• birth and death rates
• carrying capacity
• height of the space

Tags

NGSS.HS-LS2-2

What type of growth is shown on this graph?

• logistic
• exponential
• average
• density-independent

Which of the following is a density-independent limiting factor?

• natural disaster
• predation
• disease
• parasitism